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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A116169 Numbers k such that k concatenated with k+1 gives the product of two numbers which differ by 9.

Table of values

n a(n)
1 9
2 49
3 1166975893986638437392162264780939
4 1411174268292962563778302427727571
5 1860631503683565562655236868895135

List of values

[9, 49, 1166975893986638437392162264780939, 1411174268292962563778302427727571, 1860631503683565562655236868895135]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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